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This commit is contained in:
Trammell hudson 2018-02-28 22:23:40 -05:00
parent 8b8097253c
commit a9a5eaf59d
Failed to extract signature
1 changed files with 12 additions and 4 deletions
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16
hiddenwire.c
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@ -2,6 +2,8 @@
* Render a hidden wireframe version of an STL file. * Render a hidden wireframe version of an STL file.
* *
*/ */
// ./hiddenwire --no-hidden --prune 1 -v < nyc-50000.stl --camera 400,60,-600 --lookat 450,0,-800 --up 0,1,0 --fov 20 > test3.svg
#include <stdio.h> #include <stdio.h>
#include <stdlib.h> #include <stdlib.h>
#include <stdint.h> #include <stdint.h>
@ -102,11 +104,12 @@ svg_line(
float thick float thick
) )
{ {
// invert the sense of y
printf("<line x1=\"%fpx\" y1=\"%fpx\" x2=\"%fpx\" y2=\"%fpx\" stroke=\"%s\" stroke-width=\"%.1fpx\"/>\n", printf("<line x1=\"%fpx\" y1=\"%fpx\" x2=\"%fpx\" y2=\"%fpx\" stroke=\"%s\" stroke-width=\"%.1fpx\"/>\n",
p1[0], p1[0],
p1[1], -p1[1],
p2[0], p2[0],
p2[1], -p2[1],
color, color,
thick thick
); );
@ -875,8 +878,8 @@ int main(
printf("<svg xmlns=\"http://www.w3.org/2000/svg\" width=\"%.0fpx\" height=\"%.0fpx\" viewbox=\"0 0 %.0f %.0f\">\n", width, height, width, height); printf("<svg xmlns=\"http://www.w3.org/2000/svg\" width=\"%.0fpx\" height=\"%.0fpx\" viewbox=\"0 0 %.0f %.0f\">\n", width, height, width, height);
float off_x = 0; // width/2; float off_x = width/2;
float off_y = 0; // height/2; float off_y = height/2;
printf("<g transform=\"translate(%f %f)\">\n", off_x, off_y); printf("<g transform=\"translate(%f %f)\">\n", off_x, off_y);
int rejected = 0; int rejected = 0;
@ -907,6 +910,10 @@ int main(
behind++; behind++;
goto reject_early; goto reject_early;
} }
s[j].p[0] *= width;
s[j].p[1] *= width;
s[j].p[2] *= width;
} }
if(debug >= 2) if(debug >= 2)
@ -922,6 +929,7 @@ int main(
); );
} }
tri_t * const tri = tri_new(s, stl->p); tri_t * const tri = tri_new(s, stl->p);
// reject this face if any of the vertices are behind us // reject this face if any of the vertices are behind us